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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Modified Steering Stem
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<blockquote data-quote="Martyn Goodwin" data-source="post: 78045" data-attributes="member: 2433"><p>Hi Chris,</p><p></p><p>The sag point you choose is a matter of personal choice. All it does is determine how much travel you have left in BOTH directions, from that static sag point. I selected 30% for myself as I thought it was a good compromise to avoid both topping out and bottoming out when riding, but it is a matter of personal choice.</p><p></p><p>You are totally correct with your observation about short and long springs. It is ONLY the Spring Constant (sometimes called the spring rate) that affects the feel of the spring in use. </p><p></p><p>For any given Spring Constant you can move the Static Sag only ONLY by changing the length of the spring, either by adding pre load spacers or cutting the spring to shorten it. If you think that your springs are too soft, adding pre load spacers will NOT change the feel - all that will do is move the static sag point and change the topping out and bottoming out forces.</p></blockquote><p></p>
[QUOTE="Martyn Goodwin, post: 78045, member: 2433"] Hi Chris, The sag point you choose is a matter of personal choice. All it does is determine how much travel you have left in BOTH directions, from that static sag point. I selected 30% for myself as I thought it was a good compromise to avoid both topping out and bottoming out when riding, but it is a matter of personal choice. You are totally correct with your observation about short and long springs. It is ONLY the Spring Constant (sometimes called the spring rate) that affects the feel of the spring in use. For any given Spring Constant you can move the Static Sag only ONLY by changing the length of the spring, either by adding pre load spacers or cutting the spring to shorten it. If you think that your springs are too soft, adding pre load spacers will NOT change the feel - all that will do is move the static sag point and change the topping out and bottoming out forces. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Modified Steering Stem
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